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preetha_85: Senior | Next Rank: 100 Posts; Posts: 95; Joined: Sun Jul 06, 2008 6:41 am; Location: INDIA; Thanked: 2 times

by preetha_85 » Thu Aug 14, 2008 1:58 pm

Hi

I do not understand how the equation has been formed for the 2nd statement in the problem . Could anybody please tell me wat the equation exactly is?

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Source: Beat The GMAT — Data Sufficiency | Thu Aug 14, 2008 1:58 pm

iplraf: Junior | Next Rank: 30 Posts; Posts: 13; Joined: Mon Sep 10, 2007 10:16 am

by iplraf » Thu Aug 14, 2008 5:43 pm

Distance between two points (a, b) and (c, d):

Square root [ (a-c)^2 + (b-d)^2 ]

So, in our case, we have 2*dist AE = dist CE.

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